General: Work Item GH-394 - DefaultValueBinder is too much aggressive when converting string to numeric

Classes/PHPExcel/Cell/DefaultValueBinder.php

@@ -76,31 +76,25 @@ class PHPExcel_Cell_DefaultValueBinder implements PHPExcel_Cell_IValueBinder
         // Match the value against a few data types
         if (is_null($pValue)) {
             return PHPExcel_Cell_DataType::TYPE_NULL;
-
         } elseif ($pValue === '') {
             return PHPExcel_Cell_DataType::TYPE_STRING;
-
         } elseif ($pValue instanceof PHPExcel_RichText) {
             return PHPExcel_Cell_DataType::TYPE_INLINE;
-
         } elseif ($pValue{0} === '=' && strlen($pValue) > 1) {
             return PHPExcel_Cell_DataType::TYPE_FORMULA;
-
         } elseif (is_bool($pValue)) {
             return PHPExcel_Cell_DataType::TYPE_BOOL;
-
         } elseif (is_float($pValue) || is_int($pValue)) {
             return PHPExcel_Cell_DataType::TYPE_NUMERIC;
-
         } elseif (preg_match('/^\-?([0-9]+\\.?[0-9]*|[0-9]*\\.?[0-9]+)$/', $pValue)) {
+            if (is_string($pValue) && $pValue{0} === '0' && strlen($pValue) > 1 && $pValue{1} !== '.' ) {
+                return PHPExcel_Cell_DataType::TYPE_STRING;
+            }
             return PHPExcel_Cell_DataType::TYPE_NUMERIC;
-
         } elseif (is_string($pValue) && array_key_exists($pValue, PHPExcel_Cell_DataType::getErrorCodes())) {
             return PHPExcel_Cell_DataType::TYPE_ERROR;
+        }
 
-        } else {
         return PHPExcel_Cell_DataType::TYPE_STRING;
-
-        }
     }
 }

changelog.txt

@@ -35,6 +35,7 @@ Planned for v1.8.1
 - Bugfix:   (MBaker)                            - Fix to getStyle() call for cell object
 - General:  (MBaker)                            - Small performance improvement for autosize columns
 - General:  (frost-nzcr4)     Work Item GH-379  - Change the getter/setter for zeroHeight to camel case
+- General:  (MBaker)          Work Item GH-394  - DefaultValueBinder is too much aggressive when converting string to numeric
 - Feature:  (WiktrzGE)        Work Item GH-404  - Methods to manage most of the existing options for Chart Axis, Major Grid-lines and Minor Grid-lines
 - Feature:  (frost-nzcr4)     Work Item GH-403  - ODS read/write comments in the cell
 - Feature:  (CQD)             Work Item GH-389  - Additional Mac CJK codepage definitions